Re: [PATCH 2/2] arch: add pidfd and io_uring syscalls everywhere

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Arnd Bergmann <arnd@xxxxxxxx> writes:
> diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
> index b18abb0c3dae..00f5a63c8d9a 100644
> --- a/arch/powerpc/kernel/syscalls/syscall.tbl
> +++ b/arch/powerpc/kernel/syscalls/syscall.tbl
> @@ -505,3 +505,7 @@
>  421	32	rt_sigtimedwait_time64		sys_rt_sigtimedwait		compat_sys_rt_sigtimedwait_time64
>  422	32	futex_time64			sys_futex			sys_futex
>  423	32	sched_rr_get_interval_time64	sys_sched_rr_get_interval	sys_sched_rr_get_interval
> +424	common	pidfd_send_signal		sys_pidfd_send_signal
> +425	common	io_uring_setup			sys_io_uring_setup
> +426	common	io_uring_enter			sys_io_uring_enter
> +427	common	io_uring_register		sys_io_uring_register

Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc)

Lightly tested.

The pidfd_test selftest passes.

Ran the io_uring example from fio, which prints lots of:

IOPS=209952, IOS/call=32/32, inflight=117 (117), Cachehit=0.00%
IOPS=209952, IOS/call=32/32, inflight=116 (116), Cachehit=0.00%
IOPS=209920, IOS/call=32/32, inflight=115 (115), Cachehit=0.00%
IOPS=209952, IOS/call=32/32, inflight=115 (115), Cachehit=0.00%
IOPS=209920, IOS/call=32/32, inflight=115 (115), Cachehit=0.00%
IOPS=209952, IOS/call=32/32, inflight=115 (115), Cachehit=0.00%
IOPS=210016, IOS/call=32/32, inflight=114 (114), Cachehit=0.00%
IOPS=210016, IOS/call=32/32, inflight=113 (113), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=113 (113), Cachehit=0.00%
IOPS=210016, IOS/call=32/32, inflight=113 (113), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=112 (112), Cachehit=0.00%
IOPS=210016, IOS/call=32/32, inflight=110 (110), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=105 (105), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=104 (104), Cachehit=0.00%
IOPS=210080, IOS/call=32/32, inflight=102 (102), Cachehit=0.00%
IOPS=210112, IOS/call=32/32, inflight=100 (100), Cachehit=0.00%
IOPS=210080, IOS/call=32/32, inflight=97 (97), Cachehit=0.00%
IOPS=210112, IOS/call=32/32, inflight=97 (97), Cachehit=0.00%
IOPS=210112, IOS/call=32/31, inflight=126 (126), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=126 (126), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=125 (125), Cachehit=0.00%
IOPS=210016, IOS/call=32/32, inflight=119 (119), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=117 (117), Cachehit=0.00%
IOPS=210016, IOS/call=32/32, inflight=114 (114), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=111 (111), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=108 (108), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=107 (107), Cachehit=0.00%
IOPS=210048, IOS/call=32/32, inflight=105 (105), Cachehit=0.00%

Which is good I think?


cheers



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